This workshop builds on the Law and the GeoWeb workshop held recently at Microsoft Research, Redmond, WA, and will bring together speakers from across industry, research and academia to contribute toward some of the fundamental theoretical and technical questions emerging in the Open Data space (i.e., how to mark up and release open data; licensing models for governments and how to interface them to other open source and commercial licensing regimes; conflicts between data protection and transparency and structuring access to data by different groups).